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Finding the Fourth Proportional to 317,627.84, 438,327.29 and 174,397.16

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Solution

The fourth proportional to 317,627.84, 438,327.29 and 174,397.16 is: 240,668.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,627.84 : 438,327.29 = 174,397.16 : x
  2. Step 2: Convert to fraction form
    317,627.84/438,327.29 = 174,397.16/x
  3. Step 3: Cross multiply
    317,627.84x = 438,327.29 × 174,397.16
  4. Step 4: Simplify right side
    317,627.84x = 76,443,034,750.33
  5. Step 5: Solve for x
    x = 76,443,034,750.33/317,627.84
  6. Step 6: Final answer
    x = 240,668.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.